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Texas gas well

Producing

THREE SISTERS 01

Three Sisters 01 is a gas well in Live Oak County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

22,124mcf gas, last 12 months−13% vs prior year
Operator
Marathon Oil Ef LLC
County
Live Oak County
Field
Sugarkane (Eagle Ford)
RRC lease
02-267710

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Where it sits

This county

Live Oak CountyLive OakAtascosaGoliadMcMullenKarnesSan PatricioBeeLive Oak County
Live Oak County
Oil, last 12 months
1,590 bbl
Gas in Jul 2026
1,668 mcf

Other leases named Three Sisters 01

49 leases share this name in district 02. The Railroad Commission gives each gas well its own number and each oil lease another, so one unit often shows up as several of these.
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Production by month

Gas output fell 13% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 13% over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output fell 13% over the last 12 months. 22,124 mcf in the 12 months through Jul 2026, against 25,450 mcf in the 12 months before.Last 12 months: 22,124 mcfmcf per monthbbl per month001,000502,0001003,0001504,0002005,000250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 13% over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output fell 13% over the last 12 months. 22,124 mcf in the 12 months through Jul 2026, against 25,450 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month001,000502,0001003,0001504,0002005,000250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

All of the gas went to a processing plant in the last 12 months

All of the gas went to a processing plant in the last 12 monthsShare of THREE SISTERS 01 gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a processing plant in the last 12 monthsShare of THREE SISTERS 01 gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Who has run this lease

The operator changed once, most recently in Mar 2023

Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now
Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on THREE SISTERS 01
API numberWell no.Status
42-297-3489602HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers50Mar 1, 2023–
Enterprise Crude Pipeline LLCCondensateGathers50Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasBuys100Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasGathers100Mar 1, 2023–
Gulfmark Energy, Inc.CondensateGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasBuys100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCCondensateGathers50Oct 1, 2019Oct 2, 2019
Enterprise Crude Oil LLCCondensateGathers25Oct 1, 2019Oct 2, 2019
Enterprise Crude Pipeline LLCCondensateGathers25Oct 1, 2019Oct 2, 2019

SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).

Who buys my oilOil price check

6,438 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.

Check your decimal on this lease
Permits for Three Sisters 01
API numberWell no.Acreson the permit
42-297-3489602H6,438

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Unit decimal checker

What ConocoPhillips told investors it received

Marathon Oil Ef LLC is linked to ConocoPhillips (MRO).
Realized prices reported by ConocoPhillips
QuarterOil$ per bblFiling
Q2 2026$99.40SEC filing
Q1 2026$73.47SEC filing
Q3 2025$66.13SEC filing
Q2 2025$64.23SEC filing
Q1 2025$71.65SEC filing

SourceConocoPhillips quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for THREE SISTERS 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil95951,6681,6680$80.46$2.89
Jun 2026Marathon Oil1101102,1142,1140$84.81$3.15
May 2026Marathon Oil1481482,2842,2840$102.13$2.94
Apr 2026Marathon Oil1961962,3862,3860$100.32$2.77
Mar 2026Marathon Oil1611611,8471,8470$91.38$3.04
Feb 2026Marathon Oil34343383380$64.51$3.62
Jan 2026Marathon Oil1571571,8061,8060$60.04$7.72
Dec 2025Marathon Oil1671671,9241,9240$57.97$4.26
Nov 2025Marathon Oil1221221,8511,8510$60.06$3.79
Oct 2025Marathon Oil1401401,9311,9310$60.89$3.19
Sep 2025Marathon Oil1251251,9481,9480$63.96$2.97
Aug 2025Marathon Oil1351352,0272,0270$64.86$2.91
Jul 2025Marathon Oil1341341,9741,9740$68.39$3.20
Jun 2025Marathon Oil1391392,0122,0120$68.17$3.02
May 2025Marathon Oil1421422,0902,0900$62.17$3.12
Apr 2025Marathon Oil1511512,1652,1650$63.54$3.42
Mar 2025Marathon Oil1551552,2792,2790$68.24$4.12
Feb 2025Marathon Oil1471471,8971,8970$71.53$4.19
Jan 2025Marathon Oil1691692,4602,4600$75.74$4.13
Dec 2024Marathon Oil1811812,7372,7370$70.12$3.01
Nov 2024Marathon Oil2482483,5633,5630$69.95$2.12
Oct 2024Marathon Oil3328280$71.99$2.20
Sep 2024Marathon Oil58581,0771,0770$70.24$2.28
Aug 2024Marathon Oil2372373,1683,1680$76.68$1.99
Jul 2024Marathon Oil00000$81.80$2.07
Jun 2024Marathon Oil95951,3011,3010$79.77$2.54
May 2024Marathon Oil2432432,4192,4190$80.02$2.12
Apr 2024Marathon Oil1531531,9091,9090$85.35$1.60
Mar 2024Marathon Oil1611612,0702,0700$81.28$1.49
Feb 2024Marathon Oil1331331,7271,7270$77.25$1.72
Jan 2024Marathon Oil1671672,0072,0070$74.15$3.18
Dec 2023Marathon Oil98981,1741,1740$71.90$2.52
Nov 2023Marathon Oil1331331,6411,6410$77.69$2.71
Oct 2023Marathon Oil1261261,7611,7610$85.64$2.98
Sep 2023Marathon Oil1381381,9851,9850$89.43$2.64
Aug 2023Marathon Oil1411412,2822,2820$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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Nearby

This lease belongs to

OperatorMarathon Oil Ef LLCFieldSugarkane (Eagle Ford)CountyLive Oak County

Marathon Oil Ef LLC in Live Oak County

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Sugarkane (Eagle Ford) field

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